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  • Usage in publication:
    • Crossing Knob Gneiss
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Bartholomew, M.J., and Lewis, S.E., 1984, Evolution of Grenville massifs in the Blue Ridge geologic province, southern and central Appalachians, IN Bartholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological Society of America Special Paper, 194, p. 229-254.


Summary:

Crossing Knob Gneiss, new in this report, is in the Watauga massif in the Blue Ridge of NC, where it appears to be a roof pendant in the Watauga River Gneiss (new name) of the Forge Creek Suite (new name. Described as dioritoid. Age is Middle Proterozoic based on Rb-Sr date of 945 Ma.

Source: GNU records (USGS DDS-6; Reston GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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